Atlanta to Seoul Time Difference
Seoul is 13 hours ahead of Atlanta. When it's 08:58:13 AM in Atlanta, it's 09:58:13 PM in Seoul.
How Many Hours Ahead Is Seoul From Atlanta?
Seoul is 13 hours ahead of Atlanta. So Atlanta is 13 hours behind Seoul looking the other way — the same gap, described from the other end.
In practice that means a working day in Atlanta starts when it is already 10:00 PM in Seoul. The gap is not fixed all year: it becomes 14 hours on Sunday, November 1, 2026, when Atlanta changes its clocks.
Best Time to Call Atlanta and Seoul
Standard 9-to-5 hours in Atlanta and Seoul never overlap, so someone has to take the call outside their working day. The most workable window is 6:00 PM to 10:00 PM in Atlanta, which is 7:00 AM to 11:00 AM in Seoul.
both at work Atlanta only Seoul only neither — hours shown along the strip are Atlanta local time.
Convert a Specific Time
Pick any date and time in Atlanta to see the exact equivalent in Seoul.
Common Times Converted
Atlanta time on the left, Seoul time on the right.
Atlanta to Seoul: Full 24-Hour Conversion Table
Based on today, Sunday, October 11, 2026 in Atlanta. Shaded rows are working hours; the darker shade marks the hours when both cities are at work.
| Atlanta | Seoul | Working hours |
|---|---|---|
| 12:00 AM | 1:00 PM | Seoul only |
| 1:00 AM | 2:00 PM | Seoul only |
| 2:00 AM | 3:00 PM | Seoul only |
| 3:00 AM | 4:00 PM | Seoul only |
| 4:00 AM | 5:00 PM | — |
| 5:00 AM | 6:00 PM | — |
| 6:00 AM | 7:00 PM | — |
| 7:00 AM | 8:00 PM | — |
| 8:00 AM | 9:00 PM | — |
| 9:00 AM | 10:00 PM | Atlanta only |
| 10:00 AM | 11:00 PM | Atlanta only |
| 11:00 AM | 12:00 AM next day | Atlanta only |
| 12:00 PM | 1:00 AM next day | Atlanta only |
| 1:00 PM | 2:00 AM next day | Atlanta only |
| 2:00 PM | 3:00 AM next day | Atlanta only |
| 3:00 PM | 4:00 AM next day | Atlanta only |
| 4:00 PM | 5:00 AM next day | Atlanta only |
| 5:00 PM | 6:00 AM next day | — |
| 6:00 PM | 7:00 AM next day | — |
| 7:00 PM | 8:00 AM next day | — |
| 8:00 PM | 9:00 AM next day | Seoul only |
| 9:00 PM | 10:00 AM next day | Seoul only |
| 10:00 PM | 11:00 AM next day | Seoul only |
| 11:00 PM | 12:00 PM next day | Seoul only |
Understanding the Atlanta – Seoul Time Difference
Atlanta runs on America/New_York, currently EDT (UTC-4:00). Seoul runs on Asia/Seoul, currently KST (UTC+9:00). The gap of 13 hours is simply the distance between those two offsets.
Atlanta observes Daylight Saving Time and Seoul does not, so the gap between them shifts by an hour twice a year. The next shift is on Sunday, November 1, 2026, when Atlanta adjusts its clocks and the difference becomes 14 hours. Anything scheduled across that date needs checking again.
Full clock-change dates: Daylight Saving Time in the United States.
Atlanta today
Seoul today
Frequently Asked Questions
What is the time difference between Atlanta and Seoul?
Seoul is currently 13 hours ahead of Atlanta. That gap becomes 14 hours on Sunday, November 1, 2026, when Atlanta changes its clocks.
How many hours ahead is Seoul from Atlanta?
Seoul is 13 hours ahead of Atlanta. Looking at it the other way, Atlanta is 13 hours behind Seoul.
What time is it in Seoul when it is 9:00 AM in Atlanta?
When it is 9:00 AM in Atlanta, it is 10:00 PM in Seoul.
Is Seoul ahead of or behind Atlanta?
Seoul is 13 hours ahead of Atlanta. Seoul reaches each point in the day first, so its working day is already finishing while Atlanta is still getting started.
What is the best time to call between Atlanta and Seoul?
Standard business hours in Atlanta and Seoul do not overlap at all, so one side has to step outside the 9-to-5. The most workable window is 6:00 PM to 10:00 PM in Atlanta, which is 7:00 AM to 11:00 AM in Seoul.
Does the time difference between Atlanta and Seoul change during the year?
Yes. Atlanta observes Daylight Saving Time and Seoul does not, so the gap between them shifts during the year. It changes to 14 hours on Sunday, November 1, 2026.
What time zones are Atlanta and Seoul in?
Atlanta uses the America/New_York time zone, currently EDT (UTC-4:00). Seoul uses Asia/Seoul, currently KST (UTC+9:00).